Heatsink requirements for coherent operation of high-power semiconductor laser arrays

Journal Article · Thu Nov 01 00:00:00 EST 1984 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/JQE.1984.1072296· OSTI ID:5824375

Garmire, E M; Tavis, M T

The heatsink requirements for coherent operation of laser diode arrays are examined by thermal analysis of specific heatsinks and the phase locking of laser diodes. It is shown that mounting laser diode arrays at the edge of semi-infinite copper heatsinks results in temperature variations between individual laser diode elements that are too large to permit coherent operation except at relatively low-power levels. It is also shown that by the use of diamond and/or shaped heatsinks it is possible to operate large arrays coherently to high optical output levels.

• Research Organization: Center for Laser Studies, University of Southern California, University Park, Los Angeles, CA 90007
• OSTI ID: 5824375
• Journal Information: IEEE J. Quant. Electron.; (United States), Vol. QE-20:11
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
HEAT SINKS
THERMAL ANALYSIS
SEMICONDUCTOR LASERS
COPPER
DIAMONDS
POSITIONING
TEMPERATURE EFFECTS
CARBON
ELEMENTAL MINERALS
ELEMENTS
LASERS
METALS
MINERALS
NONMETALS
SEMICONDUCTOR DEVICES
SINKS
TRANSITION ELEMENTS
420300* - Engineering- Lasers- (-1989)